petherick



3 Sheets-Sheet 1.

(No Model.)

-V. PETHERIGK.

y ANIMAL SHBARS. N0.f396,832. PatentedJan. 29, 1889i (No Model.) 3 vSheets-Sheet 2. V. PE''HERIGK.

ANIMAL SHEARS.

(No Model.) 3 Sheets-Sheet 3.

V. PETHERIGK.

ANIMAL SHEARS.

N0. 396,832. Patented Jan. 29, 1889.

N. :mens Pnmmhompnef, wamngmn. D4 c4 i TATES UNrrnn PATENT trice..

ANIMAL-SH EARS.

SPECIFICATION forming part of Letters Patent No. 396,832, dated January 29, 1889.

Application filed December 8, 1887. Serial No. 257,343. (o model.)

To LZZ 107mm it 'nmy/ concer/1.'

Be it known that I, VERNON PETHERICK, engineer, a subject of the Queen of Great Britain, residing at Brisbane, in the BritishY colony of Queensland, have invented newV and useful Improvements in Animal-Shears, of which the following is a specification.

This invention of improvements in apparatus for shearing wool or clipping hair relates to the class which has a fixed comb-cutter secured to the 'fore end of a suitable casing or handle, and having arranged to work to and fro upon the face of suoli comb-cutter a series of reciprocating cutter-teeth supported and operated by mechanism carried by the casing. The main spindle of the mechanism carried by the handle or back part of the casing is coupled art its back end to a flexible shaft, through the medium of which motion is imparted to the apparatus; or such spindle may have a small motor attached to its back end, such motor being made suitable for steam, compressed air, or water, as desired, the necessary fiuid being supplied under pressure to the motor through a flexible tube. Further, if desired, the main spindle can be driven by an electric dynamo-machine attached to it in a suitable manner.

To illustrate my invention I have devised two forms ot' the apparatus, which will be hereinafter :fully explained with reference to their drawings. In the first .form of apparatus the movable cutter-teeth each take a curvilinear motion across the teeth of the iixed cutter-comb,while in the second form of apparatus the movable cutter-teeth are carried across the comb-cutter in a line parallel with them. Then the apparatus is driven by a motor worked by steam, compressed air, or water, the exhaust is carried away from the motor by means of a small pipe, which is led forward so as to strike upon the cutting mechanism, and thus keep the blades clear ot wool, hair, or grit.

Referring to my drawin Figure l is a part side elevation and a part vertical section oi the first form of my shearing or clipping apparatus, the sectional part being shown on the line al a, Fig. 2. Fig. 2 is a sectional plan looking down. from the line h b in Fig. l. Fig. 3 is a view of the front end, and Fig. at a view of the back end, of such first form of apparatus.

Fig. 5 shows plan on top side view and crosssection (of the cutting part) ot' one ot' the movable cutter-teeth. Fig. ti is a transverse section at c c, Fig. 2, showing the connection between the cutter-tooth and the arm which carries it. Fig. 7 is an alternative arrangement for such connection. Figs. 8, S, and 8U show details of an alternative construction of the fixed com b-plate when th e teeth thereof are removable. Fig. 9 is a central longitudinal section on line CZ d, Fig. '1.0, showing in dotted lines a modified position for the cutters. Fig. 10 is a plan looking on top of the second form of my shearing and clipping apparatus,while Fig. ll is a view of' the f'ront end, and Fig. 12 a viewlooking from the back end, of the said second form of apparatus. Fig. 1S is a plan and cross-section of' the movable cutter shown in Fig. 9, and Fig. la a plan and cross-section of the fixed cutter' shown by dotted lines in Fig. 9. Fig. is a modified arrangement for the movable cutter-teeth and theirsupporting-plate shown in Fig. 9. Fig. 16 shows a central section through a motor for steam or compressed air, which I may employ with either form of apparatus.

In the first form of apparatus (shown in l to 7) A is the frontpart, and A the back part or handle, of the casing screwed together, as shown. B is the fixed comb-plate, having the teeth B formed on its front part. This plate is secured to the 'front casing, A, by the small screw-bolts B2. The movable cutterteeth C are of the form shown, and are secured to the arms C' bythe screw-pins Cgandbybeing placed between the jaws C3 at 4the front edges of the arms C. These arms are centered at their back end on pins Ci, screwed into the iixed comb-plate B, while on the upper side of' their front ends are pins C5, which fit in the holes in the connecting-barD. The central one of the arms C has an upstanding boss, C6, on its pivotal end, and such boss is supported on the pin C', which is screwed in a similar manner to the pins C'l into the iixed comb-plate B, and pin C7 also has a bearing in the upper part of the front casing, A.

At the upper end of the sleeve or boss CGis a backwardly-extending arm, E, having a vertical slot-piece, E', formed at its end,4 and in such slot-piece there works a die or sliding block, E2, having a hole in it to receive the pin of crank E, which is arranged at the end Vconstruction of the comb-teeth B of the main spindle E", supported in the sleeve-bearing A2, arranged in the handlepiece A. The back end of the main spindle is screwed to receive the coupling F of a ilexible shaft, and the sleeve-bearing N has aterrule formed on it to receive the hose or other pliable covering 'for the :flexible shaft. ln Fig. S the comb-plate B is shown with its teeth D secured to it by the small screws lli", and thus they can. be easily ren'loved for sharpening purposes or otherwise. Fig. S" shows the tooth with the cutting-edges at its sides, while Fig. 8l shows a bilurcated tooth with the cutting-edges at its center. Fig. 7 shows that the jaws C may be dispensed with, and a pin, CS, from the arm (1 'passes into a suitable hole in. the movable cutter-teeth (l. These movable and reciprocating' cutter-teeth have an initial spring' given them, so that as 'the `cntti11e-'faces wear it is taken u Vi b such s l .l

spring.

In the second Yform otl apparatus (shown in Figs. 9 to l5) A is again the vtrout part oli' the casing, and A the back part or handle; but in this apparatus they are Formed in the one piece. l is the viixed com b-plate, and li its teeth. C are theinovable cutter-teetll E, thc crank at end of main spindle E", working in the bearings A3, arranged in the handle, and the back end ot' the spindle El, as belore, has the coupling F tor the flexible shaft and the ferrule on the bearing A2 for its hose-cover. In this lorm oit apparatus the Afixed comb-cutter plate/fill vis formed on the li'ront plate, A", which is secured to the part A by the screws A5. The front plate, A4, has a slot, A, in itol:l a dovetail section to receive the sliding bar D, which has the vertical jaws D2 at its back part within the casing, and these jaws are arranged at a suitable distance apart to leave a slot or groove for the crai'ik-pin sliding 'block E2 to werk in. To the tront ou ter tace of the bar D a plate, D, is secured by the screws D", and this plate carries the moving cutterteeth C, which are secured thereto by the countersink-headed screws D5. The toet-h C in this form oit' apparatus have their stem bent upon itself to i'orm a spring, and the upper vparts ot the stems have the lug C on them to receive the before-mentioned screws D, while the outer ends of such upper parts oit the stems have the jaws (tion them to engage with their lower part.

if desired, the slide D may be litted with the compensating plugs D, which are seated in suitable holes on the spring' DT. Such plugs then take up the wear of the slide and so assist in preventing the cutting-faces of the teeth parting from eachother as they wear.

In Fig. 9 a side rview is shown by dotted lines, and in Fig. 1i a plan of an alternative when they are arranged to lie at or about parallel with the main spindle, and when the teeth are removable, they being secured by the screws ll" to a suitable bed, AT, formed on the trout part, A, of the casing.

In Fig. l5 is shown an alternative method .ot securing the movable teeth C to the plate ,ln eonstru cting the fixed and movi ng blades to render their cutting' action most el'licient I undercut, hollow out, groove, or perforate them, so as thus to have the wearing-surfaces at their ci'ltting-edges.

The mode ot operation is as follows: The main spindle ol' eitherdescription ot' machine has motion imparted to i t by any of themeans described. 'lhen it' the machine be guided over the back oli a sheep and the wool combed to between. the teeth it will be immediately clipped or shorn olii' by the curvilinear action ot' the teeth ol' the lirst lorm of apparatus or by thc reciprocity action oi' the .teeth oi the second lorni ol? aliiparatus. The motion in both apparatus is taken li'rom the main spin- Form otl apparatus such crank operates a roeking arm, the front end of which is attached to a bar connected to the set of pivoted movable teetli,wliile in the second form of apparatus the crank operates a sliding bar to which the moving' teeth are seciufed.

llaving thus described the nature oli' my invention and the manner of performing same, I would have it understood that what l believe to be new, and therefore claim as my improvem en ts, in apparatus for shearing wool or clipping hair isl. The combination, with the tubular handle provided with bearings for the spindle and having the socket formed in its end, of the hollow cutter-head provided with a sleeve to engage the hollow handle for detachabl-y dle by means otl a crank, while in the lirst'.

IOO

ITO

connecting said parts together, substantially as set forth.

2. rlhe combination of a hollow cutter-head, a stationary comb-plate forming the base of said cutter-head, movable cutter-teeth secured to the front ends of pivoted arms, the upstanding sleeve or boss on the central arm, the pin C7, having' bearings in the 'upper and lower walls of the case, the backwardly-extending arm E, provided with a slot-piece yat its rear ond, and the rock-shaft or main spindle supported in bearings in the hollow handle-piece and having' its crank-pin engaging said slot-piece, substantially as specilied.

3. The combination of a tubular handle, a hollow cutter-head detachably connected Connected it its li'ont end with the Slot-piece on said nini E, substantially als set forth.

4L. A entlei.' tooth o1' blinde l'oil nfniinal-sliens, havingl n Shank bent upon itself', and :i bearing' stt the onliel end of the lient portion foi' the body of the tooth, wlier'ebynn elastic eutter tooth or 'lilzule obtained, Substantially :is und 'oi.' the pnrpoees specified.

VERNON lE'rlllERlCK. Nitnessesz JOHN DODIMEADE CALDWELIJj CHARLES EDWARD nilnfnn. 

